Fair Value Measurements (Tables)

3 Months Ended

Jan. 31, 2016

Fair Value Disclosures [Abstract]

Financial assets measured at fair value on a recurring basis

Financial assets (excluding cash balances) measured at fair value on a recurring basis are summarized below:

	January 31, 2016						October 25, 2015
	Level 1		Level 2		Total		Level 1		Level 2		Total
	(In millions)
Assets:
Money market funds	$	856	$	—	$	856	$	3,272	$	—	$	3,272
U.S. Treasury and agency securities	83		18		101		72		12		84
Non-U.S. government securities	—		19		19		—		69		69
Municipal securities	—		481		481		—		459		459
Commercial paper, corporate bonds and medium-term notes	—		411		411		—		632		632
Asset-backed and mortgage-backed securities	—		274		274		—		262		262
Publicly traded equity securities	51		—		51		45		—		45
Total	$	990	$	1,203	$	2,193	$	3,389	$	1,434	$	4,823